Objective To improve the diagnosis of CT for osseous abnomalities of lumbar posterior margin concurrent herniated disk.Methods X-ray and CT scan materials of 56 cases with herniated intervertebral disks were retrospectively studied.Results The morbidity of osseous abnomalities of lumbar posterior margin included:lumbar posterior marginal intraosseons node、lumbar posterior marginal osteophytic formation,herniated disk calcification,post longitudinal ligmentum calcification,lumbar positerior marginal fracture.Conclusion This kind of osseous abaomality is a bony fragment that is seen to protrud into the spinal canal,compression of the dural sac and nerve root,concurrent displacement of intervertebral disk.Analysis in combination with X-ray and CT images of coronal or sagittal reconstruction is helpful increasing the accuracy rate of diagnosis.

Aim To study the regulating effect of Tongxinluo on HIF-1?,VEGF that Generated by the Human brain microvascular endothelial cells induced by ?-amyloid 1-42. Methods Human brain microvascular endothelial cells were pre-incubated for 4h by Tongxinluo,then injured by ?-amyloid 1-42. VEGF protein and HIF-1? were detected by Western blot. Result In the A? treated Human brain microvascular endothelial cells,viable cells decreased. The expression of VEGF was Reduced,and HIF-1? elevated. After the cells were treated with Tongxinluo,all the above indexes were improved. Conclusion Tongxinluo can enhance the VEGF protein expressions by the HIF-1? and protect the Human brain microvascular endothelial cells.

Aim To study the regulating effect of Tongxinluo on HIF-1α,VEGF that Generated by the Human brain microvascular endothelial cells induced by β-amyloid 1-42.Methods Human brain microvascular endothelial cells were pre-incubated for 4h by Tongxinluo, then injured by β-amyloid 1-42.VEGF protein and HIF-1α were detected by Western blot.Result In the Aβ treated Human brain microvascular endothelial cells,viable cells decreased.The expression of VEGF was Reduced, and HIF-1α elevated. After the cells were treated with Tongxinluo, all the above indexes were improved.Conclusion Tongxinluo can enhance the VEGF protein expressions by the HIF-1α and protect the Human brain microvascular endothelial cells.

Objective: To introduce the Raman spectrum, the optical tweezers physical principle and its working characteristics, unify the detail medical research work, summarize specific application situation of the Raman tweezers technology in the different cells domain. Methods: Use the optical tweezers to fix the living cells, simultaneously carry out Raman spectrometry on the living cell or the cell organ by using the laser Raman technology. By applying this technology, the samples will be captured in the suspending liquid. In an approximate physiological state, the single living specimens, such as the cells, the cell organs or the biological macro-molecules, will be studied and the real-time track to the research object physiological biochemistry process will be carried on, then the Raman spectrometry will be implemented to the living cells. Results: From the single cell level, Raman tweezers technology analyzes the oxygen ability and the deformability of red blood cells of normal persons and the Mediterranean Sea anemia patients, and implements the appraisal of blood red cell and the blood platelet of different species. The Raman tweezers technology reveals the differences between the organizational structure of the cancer cells and that of normal cells in the molecular level, providing important information and data for the cancer diagnosis and the mechanism analysis. The Raman tweezers technology has implemented the torsion and knotting of DNA molecules, and realizes the control and differentiation of human being's chromosome. Conclusion: The Raman tweezers technology is the prompt and effective tool for the real-time research of cell physiology and biochemistry changes, hopefully in the molecular level. It will become one of the most advanced tools to carry out examination and diagnosis of different kind of living cell. Surely it has a very bright prospect.

Objective To discuss the effect ofrivaroxaban in preventing deep venous thrombosis after large orthopedic operation of lower extremity.Methods Totally 80 patients after lower extremity of large orthopedic operation were selected,they were divided into two groups randomly.The patients in control group (39 cases) were sc injected with enoxaparin through.The patients in observation group (41 cases) were given rivaroxaban orally.The effect of rivaroxaban in preventing deep venous thrombosis after large orthopedic operation of lower extremity were evaluated by hemodynamic indexes,diagnosis index,and complications during 1 months follow-up.Results Before operation,there was no statistical significance on platelet,hemoglobin,and PT values between two groups.Compared with the value before operation,the value ofplatelet and hemoglobin had no significantly change after 3 d of operation.But the PT was increased (P ＜ 0.05).After 3 d of operation,there was no statistical significance on platelet and hemoglobin between two groups.But the PT value of observation was higher than that of control group (P ＜ 0.05).After 1 h operation,there was no statistical significance on D-dimer,Hcy,and hs-CRP between two groups.Compared with the value after 1 h of operation,the values of D-dimer,Hcy,and hs-CRP were decreased significantly (P ＜ 0.05).And the indexes of observation group were lower than those of control group (P ＜ 0.05).After 1 months of operation,although there was no statistical significance on complications between two groups,the incidence rate of secondary bleeding and DVT of control group was higher than that of the observation group.Conclusion The rivaroxaban could prevent DVT well,which is suitable for the anticoagulation therapy after lower extremity of large orthopedic operation with little influence on platelet and hemoglobin.It is worthy of clinical application.

Objective To establish a noninvasive method for prenatal genetic analysis by using maternal serum and apply the method in fetal sex determination,paternity testing. Methods Samples of maternal serum from 53 pregnant women (11 to 36 weeks of gestation) were collected. The DNA extracted from each sample was amplified by using"Y-PLEX 6" amplification kit .which enabled the simultaneous analysis of six Y-STR loci including DYS393.DYS19.DYS389 II, DYS390, DYS391 and DYS385. The PCR products were detected by using ABI PrismTM 377 Sequencer and genotyped by related analysis software. Results (1) Y-STR specific alleles were detected in the maternal sera of all 29 mothers bearing male babies. Among the six Y-STR loci,specific alleles were detected in 29/29 at DYS393 locus,in 18/29 at DYS19 locus and in 10/29 at DYS390 locus. (2) Y-STR specific alleles were not detected in maternal sera of 24 pregnant women bearing female babies. (3) According to the presence of specific alleles at DYS393 locus and the value of allelic peak height and peak area, the accuracy of fetal sex determination was 100% . (4)The observed Y-STR alleles of each prenatal specimen from pregnant women with male fetuses were the same as the results of their husbands. Conclusion The assay of highly polymorphic Y-STR genotyping system developed by the authors provided a sensitive, accurate and non-invasive method to prenatal diagnosis. Our results demonstrate that fetal sex can be accurately determined and imply that paternity testing could be performed for pregnant women carrying male fetuses.

Objective To explore the relationship of urinary iodine level between 8-10 year-old children and adults under the same living conditions in coastal and mountain areas in Fujian Province.Methods Representative coastal and mountainous rural areas (Xindian Town Xiang'an District Xiamen City and Yongfu Town Zhangping District Longyan City) were selected as survey sites.Morning fasting urine samples from local 8-10 year-old children and their parents and a random urine sample in the morning from these children were collected.Urinary iodine was determined using the arsenic cerium catalytic spectrophotometric method (WS/T 107-2006).Results The median urinary iodine of fasting urine samples which were collected from 147 8-10 year-old children in coastal rural areas (71 boys and 76 girls) was 163.5 μg/L (boys 161.0 μg/L,girls 170.9 μg/L),and the median urinary iodine of random urine samples was 190.8 μg/L (boys 208.7 μg/L,girls 177.0 μg/L),and the difference was not statistically significant between boys and girls (Z =-0.376,-0.678,all P ＞ 0.05).The median urinary iodine of fasting urine samples which were collected from 116 8-10 year-old children in mountain rural areas (66 boys and 50 girls) was 171.8 μg/L (boys 169.5 μg/L,girls 173.8 μg/L),and the median urinary iodine of random urine samples was 210.8 μg/L (boys 233.2 μg/L,girls 203.4 μg/L),and the difference was not statistically significant between boys and girls (Z =-0.413,-0.881,all P ＞ 0.05).The median urinary iodine of random urine samples which were collected from 8-10 year-old children in mountain rural areas was significantly higher than that of the morning fasting urine samples (Z =-2.789,P ＜ 0.05).The median urinary iodine of children's fathers in coastal rural areas was 177.0 μg/L,and the median urinary iodine of their mothers was 181.7 μg/L.There was no significant difference between coastal rural children and their parents (Z =-0.387,-0.658,all P ＞ 0.05),and there was also no significant difference between fathers and mothers (Z =-0.014,P ＞ 0.05).The median urinary iodine of children's fathers in mountain rural areas was 227.3 μg/L,and the median urinary iodine of their mothers was 237.4 μg/L There was a significant difference between mountain rural children and their parents (Z =-4.176,-4.373,all P ＜ 0.05),and there was no significant difference between fathers and mothers (Z =-0.291,P ＞ 0.05).Conclusions Urinary iodine level of school-age children does not reflect the actual urinary iodine level of adults.There is a difference between urinary iodine level of random urine sample and morning fasting urine sample.Attention should be paid to this difference when monitoring iodine nutrition in population.

Purpose:To study the characteristics of biological distribution in vivo and therapeutic efficacy of 125 I-anti-alpha-fetoprotein(AFP) antibody when administrated by the hepatic artery , and discussion of multi-modal therapy by transcatheter arterial chemoembolization(TACE) and immunization therapy. Methods:21 patients with moderately and advanced primary liver cancer (PLC) were treated by 125 I-anti -alpha-fetoprotein which was administered via hepatic artery, together with TACE and CD3AK cell by intravenous infusion to,detect the pharmacokinetic parameters and metabolism for 125 I-anti-AFP in vivo, and observe the efficacy of multi-modal treatment. Results:The radioactivity half-life time of ?phase (T 1/2 ?) and ? phase ( T 1/2 ?) for 125 I-anti-AFP antibodies was 1.85?1.79 and 156.46?65 hr,respectively; half-excretion time from urine was 94 hr, radiation intensity measured at body surface of organ suggested that the accumulated radioactivity was stronger and longer in the liver was than other organ.TPECT for tumour:liver ratio was 2.1?0.6. The efficacy for the treated group and the control group was respectively 61.9%(13/21) and 25.0%(5/20),the one-year cumulative survival rate of the treated group and the control group was also 61.9% and 25.0%.Conclusions: 125 I-anti-AFP via hepatic artery was able to concentrate electively in the tumour ,thereby bringing about a continuous internal irradiation for the tumour.This combined treatment is an effective method for PLC.

Objective Mutations of 13 CODIS (Combined DNA Index System) STR core loci in 532 cases of paternity testing were observed in confirming paternity, the mutation rate and the mutation type were studied. Methods 587 cases of paternity testing were routinely carried out using AmpFe STR Profiler Plus and Cofiler PCR Amplification Kits. When one or two STR exclusions were found, then HLA system and other blood groups were tested by molecular typing, and sixteen STR loci were genotyped by using PowerPlexl6 PCR Amplification Kit. If necessary, the genotyping of Y chromosome specific STR and HLA allelic sequencing were added. Results 1052 meiosis were observed among the 532 cases in confirmed paternity, 18 mutation events were found in 17 paternity cases. Single-locus mutation was observed in 16 cases, and mutation at two STR loci was observed in one case. The observed mutational loci include: D5S818, D3S1358, D16S539, CSFIPO, D21S11, D13S317, D7S820, vWA, D18S51 and FGA. The mutation rates for D18S51 and FGA loci were both 0.29% , which were the highest among the ten mutational loci. 11 events of paternal source mutations, 5 events of maternal source mutations and two events of indistinguishable mutations were observed in 18 STR mutational events. Conclusion When one or two STR exclusions were found in paternity testing, other more genetic markers must be detected as complement before making final conclusions.

Traditional teaching mode of biochemistry experiment couldn’t satisfy the demand of cultivating creative medical talents in new era. Offering designing experiment is the developing direction of experiment teaching reforms. But in the practice,there are various of obstacles which prevent the reforming process.